Merge branch 'PHP-7.4'

* PHP-7.4:
  Fix SKIPIF in ext/mysqli

diff --cc ext/mysqli/tests/mysqli_autocommit.phpt
Simple merge

diff --cc ext/mysqli/tests/mysqli_begin_transaction.phpt
Simple merge

diff --cc ext/mysqli/tests/mysqli_commit.phpt
Simple merge

diff --cc ext/mysqli/tests/mysqli_release_savepoint.phpt
Simple merge

diff --cc ext/mysqli/tests/mysqli_rollback.phpt
Simple merge

diff --cc ext/mysqli/tests/mysqli_savepoint.phpt
Simple merge